Rock-drill support



' H. J. CORLEY ROCK DRILL SUPPORT Filed April 5. 1923 WWW Patented Aug. 19, 1924.

warren STATES HARVEY J. costar, or THOMPSON rnL sivroNrAm i.

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ROCK-DRILL SUPPORT.

Application filed April 3, 1923. Serial No. 629,725.

To all whom it may concern: I,

Be it known that I, HARVEY J. CORLEY, a citizen of the United States, residing at Thompson Falls, in the county of Sanders, State of Montana, have invented certain new and useful Improvements in RCCk'. Drill Supports; and I do hereby declare the following to be a full, clear, and-exact description of the invention, such as will enable others skilled in the arttowhichit appertains to make and use the same,

This invention relates to new and useful improvements in supports for general use, and particularly for devices forsupporting rock drills. p a 1 One object of the invention is to provide a support which is readily portable, and which obviates the use of theu'sual supporting post, which post must be anchored to,

the roof and floor of the drift, in a mine.

Another object is to provide a device of this character which is comparatively light in wei ht, whereby the operator can remove the drlll, in a few seconds, and carry the support in one hand to the point desired, and without inconvenience. l 1

Another object is to provide a device of this character which is readily adjustable so that the drill bit may be broughtto dif ferent elevations. i

Another object is to provide a support-I ing device of this character having, uprights thereon, one ofwhich is capable of angular adjustment'for use independently of the other upright, under certain conditions.

A further object is to provide a supporting device of this character having means for advancing and withdrawing the device.

Other objects and advantages willibe'apparent from the following description when taken in connection with the accompanying drawing.

In the drawing: Figure 1 is a perspective view of the de- VlCe. I s I Figure 2 is an enlarged vertical sectional detail on the line 22 of Figure 1. I a

Figure 3 is an enlarged horizontal sectional detail on the line 3-3 of Figure 1, partly broken away. I

Referring particularly to the accompanying drawing, 10 represents an upright post having the collars 11 and 12, therearound, adjacent the upper and lower ends, 311C158? cured in the ears of the collars are theupper and lower braces 13 and 14. Mountedv on the upper'collar 11 is a split clamping collar 15, which engages in embracing relation with the vertically slidable post 16, which is J disposed or telescoped into the post 10,

Carried by the upper end of the post 16 is o a transverse hollow head 17, and rotatably engaged in said he'ad is a shaft 18, which has on one enda bifurcation 19, and has its other end held Within the head by ,a transverse pin20. The bifurcation is adapted to receive the, handle end of. a jackhammer,

pins" 21 being disposed through the furcations to hold the jack hammer within the bifurcation, and permit thesame to rotate with the shaft 18. Secured aroundthe post 10, above the collar 12, is a collar 22 having the oppositely extending handles 23 which are adapted to be grasped by the operator for lifting the post from the ground,

or,,boarcl which supports the post,when it I backwardly. c The braces 14 extend horizontally forupward curve,and eachof the braces 14 is is desired to move the deviceforwardly or Ward from the post 10, butoyvith a slight I connected with the forward end of a brace .13. At the convergentends of the braces 13 and 14 there "are formedthe bearing eyes 24, which rotatablytsupport the ends of a transverse shaft 25,, and rotatable on the "shaft, between the bearing eyes, is a ground I The rollers 26, are,

engaging' -roller 26. however, comparatively short, and between theinner' ends of these rollers is disposed a longer roller 27 Engaged on the shaft, between the ends ofthe longer roller 27, and the shorterrollers 26, are thebearing eyes 28, formed on the/lower ends of theup- "rights29. Telescoped onto the uprights are the vertically slidable tubular rods 30, each having in its lower end a longitudinal slot 31, within which is secured a leaf spring 32, and pivotallyioarried by a collar 33, which is mounted on the lower end of the atdifferentelevations on the upright. Se

' tubular rod 30, is a cam lever 34, saidleam I working through said slotto press the free I end ofthe spring against the upright '29,

'for the purpose of holding the tubularrod o I cured on the tubularrods 30, above the collars 33, are. the collars 3'5 and 36, the

former being above the latter, as shown, and pivotally connected to each of the I collars 35 and 36 is one end of a brace bar 37, the me extending between the members i 30, and being disposed in crossed relation. By this construction, the uprlghts and erator can more evenly and gradually advance the support, and drill, by turning the tubular rods may be readily adjusted tohand wheel in the proper direction.

ward and away from each other and niain tained in parallel relation. hen, however, thisv adjustment is made, it is necessary to change the rollers 26 and 27, by substituting longeror shorter rollers, in accordance with the direction of movement of the uprights. I y f I Y v Disposed transversely between the upper ends of the tubular rods 30, which ends are slightly reduced in diameter, is a downwardly curved member 38, the ends of which have openings receiving "the said ends of the rods .30; The curved portion of the member 3'8'is arranged to receive and support the forward end of the cylinder of a jack hammer, asvwi'll be understood. H

fllamped to the lower braces lit, and extending therebetween, adjacent the post 10, is a shaft 39', and rotatably mounted on the intermediate portionof this shaft is a spiked roller 41 0, which is arranged to contact with the surface of thecground or the support is mounted. One end of the roller is provided with a worm wheel 41, which is engaged by a wor'm'42, on the lower end ofa staff 43, said stafibeingrotatably supported in the bracket 44, and being provided with a hand wheel 45, on its upper end. The operator, by turning the hand wheel 45, c'an rotate the roller lo, and cause the forward orbackward movement of the entire supporting device.

In the general use of the device, the support is mounted on a board, or other flat surface 46, and disposed transversely beneathjthe board is a roller 4E7, the ends of which are rotatably,supported in the intermediate coils of the spring 48, said spring having its ends bent to embrace the end portions of the lower brace 14. Thus theboard, with the supportthereon, can be placed in any position desired, that is at any angle from the vertica'hjto a position with the entire device completely inverted. This latter position is assumed when a holeis tobe bored close to the floor, and in a line approximately parallel therewith, and which could not be reached with the device in any other'zposition. The springs and roller thus hold'the support firmly on the board, or other surface. 7 j j e In the operation ofthe device, the operator stations himself behind the post ltha nd advances the supporting structure along the supporting surfacefby pressing forwardly "againstone of the handles {23. Another; mode of operation is for the operator to grasptlie handles and liftfthe device, while'at the saine time pushing itfo'rwardly, "or he may "draw the same rearwardly, avwna-tacrmgrm lrill "out of the holeffor the purpose ;-of

"removing the small bits "'of roclr. The opboard, on which and foldsthe front supporting uprights bacl;

onto the braces, after which he may carry the folded frame in the hand to the point desired. p o v o By means of the cams 15 and 34, the post 16 and-the rods 30 may be adjusted to the height, at which the operator wishes to drill the hole in the rock. The cam 15, above referredto, is mounted in connection with the split clamping collar 15', which holds the post 16 at different elevations, as previously mentioned. p

It will, of course, be understood that when the uprights and rods 29- 30 are adjusted toward and away from each other, that a curved member 38 of different length: must of necessity be used, for the purpose of ac- 'commodating jack "hammers of different sizes. v

In the ordinary use of the device, that is when drilling straight into a wall, the drill operates in a line parallel to the surface on whichthe support is mounted. In fact, the

drill bores inYpara-llel relation to the supporting surface, no matteryat what angle the hole is being drilled. VVhe'n, however, it is desired to drill a hole adjacent the floor,

and ina downward direction, the rearend of the jack hammer is detac'hed from the headof the post 16, and themembers 29-30 swung downwardly and forwardly, with the jack hammerrest'ing onthe curved member 38, until the proper angle is reached for the drill. Then, as the drill advances into the rock, :the operator moves the supporting structure rearwardly, to maintain the drill in the hole, and the drill at the proper angle. What is claimed is:

1. Asup p orting device comprising abase,

a vertically adjustable. uprightononeend of the base, and a support on the other end of the base constructed and arranged Ifor transverse and vertical adjustment and for swinging movement.

2. Afsupporting-device comprising a 'base, a vertically adjustable upright on oneend of the base, a movable holding meanscarried by the upright, and a supporton the other end of the base including verticalmenibers adjustable toward and away from each other,

and means for vertically adjusting the *vertical members. p I

3. A supportingdevice comprising a base,

a vertically adjustable upright on one end of the base, a rotatable holding meansearried by the upright, a support on the. other end of the base construeted and arranged for vertical and transverse adjustment androive-rtical swinging movement, and a holding means on the last-named support.

on the other end of the base, and a drill frame supporting means carried by the swingable upright.

5. A supporting device for a rock drill comprising a post, a stem vertically adjustable in the post, a rotatable head-carried by the post for engagement with one end of the drill frame, adjustable uprights on the other end of the base, and a transversely disposed, support on the adjustable uprights forthe other end of the drill frame.

6. A supporting device comprising a post, an upright'vertically adjustable inthe post,

diverging braces extending in a common directionfrom the ends of the post, a shaft connecting and supporting the divergent ends of the braces, a ground roller on the shaft, vertical members supported on the shaft, adjustable paralleling connections between the vertical members, a swiveled and bifurcated member carried by the sald upright, and a transverse curved supporting element carried by the vertical members. I

7. The combinationwith a portable sur face, of a rockdrill support movable longi-I tudinally andlaterally of the surface, and resilient means carried by the support and engaged with the surface for holding the support against the surface.

In testimony whereof, I aifix my signature.

' J. GORLEY, 

